Soap bar



FIG. 1 is a perspective view of a soap bar showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view, thereof;

FIG. 5 is a side elevational view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a soap bar, as shown. 